Thoughts on how to use a family ring?

Hi my fellow Bees! So as some of you may know my SO and I have made the step and purchased a diamond (oval) and are having a E-Ring made by a jeweller. My plan is to do an Oval halo setting with a 3 sided rounded micro pave band. I am still working out the details as the diamond is not expected to arrive until tomorrow. My SO has a family ring (his grandmothers) that has been given to us and we would like to incorporate it. The diamonds on the ring given to us are too large to be added to my planed E-ring (center is .30 and all others ar .10) so we have been thinking about making an eternity band as my wedding band with the 18 .10 carat. stones on the ring. I have attached a photo so you can have a better idea (sorry if its too large-I am learning). Just wondering what everyone thinks! We would like to use the ring in some way! (The larger middle stone we are thinking of placing it in my SOs wedding band)

If you are determined to use the stones in a different way instead of keeping the heirloom ring intact, I think your idea is great. An eternity band would be beautiful. However, regardless of what you decide to do with the stones, make sure that you have the jeweler who works with it give you the original setting back, intact but sans stones. That way you can keep the actual heirloom ring and if at some point you or anyone else in the family decides that they loved that ring, they can either use the original setting and put new stones in, or they can have a copy of the setting made. In other words, don’t destroy the setting even if you use the stones for other rings.